// Copyright 2015 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// Flags: --harmony-sloppy --harmony-sloppy-let --harmony-destructuring


{
  assertThrows(function() { return let; }, ReferenceError);
  let let;

  let = 5;
  assertEquals(5, let);

  { let let = 1; assertEquals(1, let); }
  assertEquals(5, let);
}

assertThrows(function() { return let; }, ReferenceError);

(function() {
   var let, sum = 0;
   for (let in [1, 2, 3, 4]) sum += Number(let);
   assertEquals(6, sum);

   for (let let of [4, 5]) sum += let;
   assertEquals(15, sum);

   for (let let in [6]) sum += Number([6][let]);
   assertEquals(21, sum);

   for (let = 7; let < 8; let++) sum += let;
   assertEquals(28, sum);
   assertEquals(8, let);

   for (let let = 8; let < 9; let++) sum += let;
   assertEquals(36, sum);
   assertEquals(8, let);
})()

assertThrows(function() { return let; }, ReferenceError);

{
  let obj = {};
  let {let} = {let() { return obj; }};
  let().x = 1;
  assertEquals(1, obj.x);
}

{
  let obj = {};
  let [let] = [function() { return obj; }];
  let().x = 1;
  assertEquals(1, obj.x);
}

(function() {
  function let() {
    return 1;
  }
  assertEquals(1, let());
})()

assertThrows('for (let of []) {}', SyntaxError);
